Recent decadal weakening of the summer Eurasian westerly jet attributable to anthropogenic aerosol emissions
The Eurasian subtropical westerly jet (ESWJ) is a major feature of the summertime
atmospheric circulation in the Northern Hemisphere. Here, we demonstrate a robust
weakening trend in the summer ESWJ over the last four decades, linked to significant
impacts on extreme weather. Analysis of climate model simulations from the Coupled Model
Intercomparison Project Phase 6 (CMIP6) suggests that anthropogenic aerosols were likely
the primary driver of the weakening ESWJ. Warming over mid-high latitudes due to aerosol …
atmospheric circulation in the Northern Hemisphere. Here, we demonstrate a robust
weakening trend in the summer ESWJ over the last four decades, linked to significant
impacts on extreme weather. Analysis of climate model simulations from the Coupled Model
Intercomparison Project Phase 6 (CMIP6) suggests that anthropogenic aerosols were likely
the primary driver of the weakening ESWJ. Warming over mid-high latitudes due to aerosol …
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